Method and Device in Ue and Base Station for Power Adjustment

1. A method in a User Equipment (UE) for power adjustment, comprising: receiving R downlink signalings; and transmitting a first radio signal in a first time window; wherein the first radio signal is used for determining K difference value(s), and the K difference value(s) is (are one-to-one) corresponding to K reference power(s); the reference power is a power estimated for transmission of an uplink channel; measurement(s) for K antenna port group(s) are used for determining the K reference power(s respectively); the first radio signal is used for determining position(s) of the K antenna port group(s) in L antenna port groups; the antenna port group comprises a positive integer number of antenna ports; all antenna ports in the L antenna port groups are used for one same serving cell, or all antenna ports in the L antenna port groups are used for one same carrier; the K is a positive integer, the L is a positive integer not less than the K, and the L is greater than 1; each of the R downlink signalings comprises a first field and a second field; the R downlink signalings are used for one same serving cell, or, the R downlink signalings are used for one same carrier; the K reference power(s) is (are one-to-one) corresponding to K index(es); for any one given reference power among the K reference power(s), the R downlink signalings comprise a total number of R1 downlink signalings in which the first fields have values equal to the index corresponding to the given reference power, the given reference power is in linear correlation with a summation of R1 power offsets, and the R1 power offsets are indicated by the second fields in the R1 downlink signalings respectively; the R is a positive integer, and the R1 is a positive integer not greater than the R; and Each of the K index(es) is an integer.

2. The method according to claim 1 , wherein each of the K difference value(s) is equal to a difference between a first power and a corresponding reference power; or a first difference value is equal to a difference between a second power and a corresponding reference power, and each of the K difference value(s) other than the first difference value is equal to a difference between a first power and a corresponding reference power; or the K difference value(s) is (are one-to-one) corresponding to K target power(s), and the difference value is equal to a difference between a corresponding target power and a corresponding reference power.

3. The method according to claim 1 , further comprising: receiving L reference signal groups; wherein the L reference signal groups are transmitted by L antenna port groups respectively; each of the L reference signal groups comprises a positive integer number of reference signal(s), and reference signal(s) in the each reference signal group is (are one-to-one) corresponding to antenna port(s) in a corresponding transmitting antenna port group; receiving a first signaling; wherein the first signaling indicates a time duration of a first timer, and the expiration of the first timer is used for triggering reporting of the K difference value(s); or, receiving a second signaling; wherein the second signaling is used for determining a specific threshold; measurements for the L reference signal groups are used for determining L path losses respectively; the specific threshold is used for determining the K antenna port group(s) from the L antenna port groups; and K path loss(es) among the L path losses is (are) used for determining the K reference power(s respectively).

4. The method according to claim 1 , wherein a third signaling is the latest downlink signaling among the R downlink signalings, the third signaling comprises scheduling information of the first radio signal, and the scheduling information comprises at least one of {occupied time domain resources, occupied frequency domain resources, a Modulation and Coding Scheme (MCS), a Hybrid Automatic Repeat reQuest (HARQ) process number, a Redundancy Version (RV), a New Data Indicator (NDI)}.

5. The method according to claim 1 , wherein the first radio signal is used for determining at least one of {the K, first indication information}, the first indication information being applied to the K difference values; and the first indication information indicates whether a MAC entity employs power backoff, and the K is greater than 1; or, the K reference powers comprise at most one reference power, that is, a first reference power, the first reference power is in linear correlation with at least one of {a first component, a third component}, the first component is related to a bandwidth occupied by the first radio signal, and the third component is related to an MCS of the first radio signal.

6. A method in a base station for power adjustment, comprising: transmitting R downlink signalings; and receiving a first radio signal in a first time window; wherein the first radio signal is used for determining K difference value(s), and the K difference value(s) is (are one-to-one) corresponding to K reference power(s); the reference power is a power estimated for transmission of an uplink channel; measurement(s) for K antenna port group(s) are used for determining the K reference power(s respectively); the first radio signal is used for determining position(s) of the K antenna port group(s) in L antenna port groups; the antenna port group comprises a positive integer number of antenna ports; all antenna ports in the L antenna port groups are used for one same serving cell, or all antenna ports in the L antenna port groups are used for one same carrier; the K is a positive integer, the L is a positive integer not less than the K, and the L is greater than 1; each of the R downlink signalings comprises a first field and a second field; the R downlink signalings are used for one same serving cell, or, the R downlink signalings are used for one same carrier; the K reference power(s) is (are one-to-one) corresponding to K index(es); for any one given reference power among the K reference power(s), the R downlink signalings comprise a total number of R1 downlink signalings in which the first fields have values equal to the index corresponding to the given reference power, the given reference power is in linear correlation with a summation of R1 power offsets, and the R1 power offsets are indicated by the second fields in the R1 downlink signalings respectively; the R is a positive integer, and the R1 is a positive integer not greater than the R; and Each of the K index(es) is an integer.

7. The method according to claim 6 , wherein each of the K difference value(s) is equal to a difference between a first power and a corresponding reference power; or a first difference value is equal to a difference between a second power and a corresponding reference power, and each of the K difference value(s) other than the first difference value is equal to a difference between a first power and a corresponding reference power; or the K difference value(s) is (are one-to-one) corresponding to K target power(s), and the difference value is equal to a difference between a corresponding target power and a corresponding reference power.

8. The method according to claim 6 , further comprising: transmitting L reference signal groups; wherein the L reference signal groups are transmitted by L antenna port groups respectively; each of the L reference signal groups comprises a positive integer number of reference signal(s), and reference signal(s) in the each reference signal group is (are one-to-one) corresponding to antenna port(s) in a corresponding transmitting antenna port group; transmitting a first signaling; wherein the first signaling indicates a time duration of a first timer, and the expiration of the first timer is used for triggering reporting of the K difference value(s); or, transmitting a second signaling; wherein the second signaling is used for determining a specific threshold; measurements for the L reference signal groups are used for determining L path losses respectively; the specific threshold is used for determining the K antenna port group(s) from the L antenna port groups; and K path loss(es) among the L path losses is (are) used for determining the K reference power(s respectively).

9. The method according to claim 6 , wherein a third signaling is the latest downlink signaling among the R downlink signalings, the third signaling comprises scheduling information of the first radio signal, and the scheduling information comprises at least one of {occupied time domain resources, occupied frequency domain resources, an MCS, a HARQ process number, an RV, an NDI}.

10. The method according to claim 6 , wherein the first radio signal is used for determining at least one of {the K, first indication information}, the first indication information being applied to the K difference values; and the first indication information indicates whether a MAC entity employs power backoff, and the K is greater than 1.

11. A UE for power adjustment, comprising: a first receiver, to receive R downlink signalings; and a first transmitter, to transmit a first radio signal in a first time window; wherein the first radio signal is used for determining K difference value(s), and the K difference value(s) is (are one-to-one) corresponding to K reference power(s); the reference power is a power estimated for transmission of an uplink channel; measurement(s) for K antenna port group(s) are used for determining the K reference power(s respectively); the first radio signal is used for determining position(s) of the K antenna port group(s) in L antenna port groups; the antenna port group comprises a positive integer number of antenna ports; all antenna ports in the L antenna port groups are used for one same serving cell, or all antenna ports in the L antenna port groups are used for one same carrier; the K is a positive integer, the L is a positive integer not less than the K, and the L is greater than 1; each of the R downlink signalings comprises a first field and a second field; the R downlink signalings are used for one same serving cell, or, the R downlink signalings are used for one same carrier; the K reference power(s) is (are one-to-one) corresponding to K index(es); for any one given reference power among the K reference power(s), the R downlink signalings comprise a total number of R1 downlink signalings in which the first fields have values equal to the index corresponding to the given reference power, the given reference power is in linear correlation with a summation of R1 power offsets, and the R1 power offsets are indicated by the second fields in the R1 downlink signalings respectively; the R is a positive integer, and the R1 is a positive integer not greater than the R; and Each of the K index(es) is an integer.

12. The UE according to claim 11 , wherein each of the K difference value(s) is equal to a difference between a first power and a corresponding reference power; or a first difference value is equal to a difference between a second power and a corresponding reference power, and each of the K difference value(s) other than the first difference value is equal to a difference between a first power and a corresponding reference power; or the K difference value(s) is (are one-to-one) corresponding to K target power(s), and the difference value is equal to a difference between a corresponding target power and a corresponding reference power.

13. The UE according to claim 11 , wherein the first receiver receives L reference signal groups; wherein the L reference signal groups are transmitted by L antenna port groups respectively; each of the L reference signal groups comprises a positive integer number of reference signal(s), and reference signal(s) in the each reference signal group is (are one-to-one) corresponding to antenna port(s) in a corresponding transmitting antenna port group; the first receiver receives a first signaling; wherein the first signaling indicates a time duration of a first timer, and the expiration of the first timer is used for triggering reporting of the K difference value(s); or, the first receiver receives a second signaling; wherein the second signaling is used for determining a specific threshold; measurements for the L reference signal groups are used for determining L path losses respectively; the specific threshold is used for determining the K antenna port group(s) from the L antenna port groups; and K path loss(es) among the L path losses is (are) used for determining the K reference power(s respectively).

14. The UE according to claim 11 , wherein a third signaling is the latest downlink signaling among the R downlink signalings, the third signaling comprises scheduling information of the first radio signal, and the scheduling information comprises at least one of {occupied time domain resources, occupied frequency domain resources, an MCS, a HARQ process number, an RV, an NDI}.

15. The UE according to claim 11 , wherein the first radio signal is used for determining at least one of {the K, first indication information}, the first indication information being applied to the K difference values; and the first indication information indicates whether a MAC entity employs power backoff, and the K is greater than 1; or, the K reference powers comprise at most one reference power, that is, a first reference power, the first reference power is in linear correlation with at least one of {a first component, a third component}, the first component is related to a bandwidth occupied by the first radio signal, and the third component is related to an MCS of the first radio signal.

16. A base station for power adjustment, comprising: a second transmitter, to transmit R downlink signalings; and a second receiver, to receive a first radio signal in a first time window; wherein the first radio signal is used for determining K difference value(s), and the K difference value(s) is (are one-to-one) corresponding to K reference power(s); the reference power is a power estimated for transmission of an uplink channel; measurement(s) for K antenna port group(s) are used for determining the K reference power(s respectively); the first radio signal is used for determining position(s) of the K antenna port group(s) in L antenna port groups; the antenna port group comprises a positive integer number of antenna ports; all antenna ports in the L antenna port groups are used for one same serving cell, or all antenna ports in the L antenna port groups are used for one same carrier; the K is a positive integer, the L is a positive integer not less than the K, and the L is greater than 1; each of the R downlink signalings comprises a first field and a second field; the R downlink signalings are used for one same serving cell, or, the R downlink signalings are used for one same carrier; the K reference power(s) is (are one-to-one) corresponding to K index(es); for any one given reference power among the K reference power(s), the R downlink signalings comprise a total number of R1 downlink signalings in which the first fields have values equal to the index corresponding to the given reference power, the given reference power is in linear correlation with a summation of R1 power offsets, and the R1 power offsets are indicated by the second fields in the R1 downlink signalings respectively; the R is a positive integer, and the R1 is a positive integer not greater than the R; and Each of the K index(es) is an integer.

17. The base station according to claim 16 , wherein each of the K difference value(s) is equal to a difference between a first power and a corresponding reference power; or a first difference value is equal to a difference between a second power and a corresponding reference power, and each of the K difference value(s) other than the first difference value is equal to a difference between a first power and a corresponding reference power; or the K difference value(s) is (are one-to-one) corresponding to K target power(s), and the difference value is equal to a difference between a corresponding target power and a corresponding reference power.

18. The base station according to claim 16 , wherein the second transmitter transmits L reference signal groups; wherein the L reference signal groups are transmitted by L antenna port groups respectively; each of the L reference signal groups comprises a positive integer number of reference signal(s), and reference signal(s) in the each reference signal group is (are one-to-one) corresponding to antenna port(s) in a corresponding transmitting antenna port group; the second transmitter transmits a first signaling; wherein the first signaling indicates a time duration of a first timer, and the expiration of the first timer is used for triggering reporting of the K difference value(s); or, the second transmitter transmits a second signaling; wherein the second signaling is used for determining a specific threshold; measurements for the L reference signal groups are used for determining L path losses respectively; the specific threshold is used for determining the K antenna port group(s) from the L antenna port groups; and K path loss(es) among the L path losses is (are) used for determining the K reference power(s respectively).

19. The base station according to claim 16 , wherein a third signaling is the latest downlink signaling among the R downlink signalings, the third signaling comprises scheduling information of the first radio signal, and the scheduling information comprises at least one of {occupied time domain resources, occupied frequency domain resources, an MCS, a HARQ process number, an RV, an NDI}.

20. The base station according to claim 16 , wherein the first radio signal is used for determining at least one of {the K, first indication information}, the first indication information being applied to the K difference values; and the first indication information indicates whether a MAC entity employs power backoff, and the K is greater than 1.